as the ordinary plastic pipe, but also because of special inner and outer wall hollow ring structure, it has the advantages of high rigidity, light weight, high pressure resistance, good toughness, abrasion resistance, impact resistance, not easy damage, convenient construction, low installation cost, long service life etc. 7178788094934171783-blid-7331003358924345257

2up และ 3up พร้อมสำหรับการจั่วที่จะเกิดขึ้น 01-02-2563

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